Teeth have long been important to humans, allowing us to break down food, threaten prey, and bite our dates' fingernails during horror movies. Protect your pearly whites with today's Groupon: for $2,750, you get a complete Invisalign orthodontic treatment from Dr. Michael Folck in Virginia Beach (a $5,500 value).

Dr. Michael Folck helps gradually straighten teeth using Invisalign's clear, removable aligners. Unlike traditional braces, Invisalign trays are less noticeable and can be easily removed for eating, brushing, and growling at mail carriers. During the initial appointment, bites are carefully examined and x-rayed to determine the course of treatment. Tooth technicians then make a mold of chompers to use for custom aligners and creating cheerier statues of David. Over the course of the treatment, patients will gently straighten smiles with a series of Invisalign trays, which they wear for two weeks before moving to the next stage's tray. Treatments take 6–18 months, depending on patients' needs, and include several visits to the tooth doctor to ensure pearly whites are aligning correctly.